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3 years ago

7

Laboratory tests show that the lives of light bulbs are normally distributed with a mean of 750 hours and a standard deviation o

f 750 hours. Find the probability that a randomly selected light bulb will last between 750 and 825 hours.
[?]%

1 answer:

BartSMP [9]3 years ago

5 0

Answer:

34

Step-by-step explanation:

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Help I need this today

Nadusha1986 [10]

Answer:

x=70

y=75

Step-by-step explanation:

2x+x+5-35=180

3x-30=180

3x=210

x=70

2(70)-35=105

180-105=75

y=75

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2 years ago

Find the equation of the axis of symmetry and the coordinates of the vertex of the graph of the function: y=4x^2-8x-3

In-s [12.5K]

D. x= -1; vertex: (-1,-7)

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3 years ago

What is the slope of a line that is perpendicular to the line whose equation is 0.52 - 5y = 9?

otez555 [7]

The slope is 0.1
To find a perpendicular slope, find the negative reciprocal.
The reciprocal of 0.1 is 10
The negative of 10 is -10
Final answer:-10

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2 years ago

-0.2 _________ -0.6<br><br> greater than<br> less than<br> equal to

hammer [34]

Answer:

-0.2 > -0.6

Step-by-step explanation:

The closer to zero the greater it is

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3 years ago

Need help on this question thank you

Ivahew [28]

Answer:

B.

Step-by-step explanation:

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